Hunsucker, Robert D. <br/><br/>
Atlas of oblique incidence hy-frequency back seatter lonograms of the midlatitude lonosphere / 
Robert D. Husucker 
 - Washington, D.C. :  U.S. Government Printing Office,  [n.d.] 
 - iii, 132 p. ;  28 cm. 
<br/><br/> Essa technical report ERL 162-ITS 104 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio frequency allocation<br/>Radio relay systems
<br/><br/><label>Dewey Class. No.: </label>621.384152